#5BB3F3#5BB3F3

#5BB3F3 is a light, vivid cyan. Relative luminance 0.409; OKLCH L 73.9% C 0.126 H 242.6°. Best body text is #000000 at 9.19:1 contrast (WCAG AA passes).

Color values

HEX	#5BB3F3
RGB	rgb(91, 179, 243)
HSL	hsl(205, 86%, 65%)
HSV	hsv(205, 63%, 95%)
CMYK	cmyk(62.6%, 26.3%, 0%, 4.7%)
CIE-LAB	lab(70.13, -7.46, -39.72)
CIE-LCH	lch(70.13, 40.41, 259.36°)
OKLab	oklab(73.88% -0.0578 -0.1117)
OKLCH	oklch(73.88% 0.126 242.6)
XYZ	xyz(36.6061, 40.9318, 90.7481)
Luminance	0.4093 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5BB3F3 #F39B5B

analogous

#5BF3E7 #5BB3F3 #5B67F3

triadic

#5BB3F3 #F35BB3 #B3F35B

tetradic

#5BB3F3 #E75BF3 #F39B5B #67F35B

square

#5BB3F3 #E75BF3 #F39B5B #67F35B

split-complementary

#5BB3F3 #F35B67 #F3E75B

monochromatic

#0E78C5 #2299EF #5BB3F3 #94CDF7 #CDE8FB

Accessibility & contrast

On white

2.29

#5BB3F3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.19

#5BB3F3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5BB3F3

9.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5BB3F3	#FFFFFF	#000000	##000000
##5BB3F3	1.00	2.29	9.19	9.19
#FFFFFF	2.29	1.00	21.00	21.00
#000000	9.19	21.00	1.00	1.00
##000000	9.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#96B4F6

Deuteranopia (green-blind)

#82A5F2

Tritanopia (blue-blind)

#00C3C9

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #5bb3f3;
/* rgb */ color: rgb(91, 179, 243);
/* oklch */ color: oklch(73.9% 0.126 242.6);

Tailwind

colors: {
  custom: {
    50: '#97c9f7',
    500: '#5bb3f3',
    950: '#000000',
  },
}

SCSS

$custom: #5bb3f3;
$custom-light: #97c9f7;
$custom-dark: #000000;

JSON

{
  "hex": "#5bb3f3",
  "rgb": {
    "r": 91,
    "g": 179,
    "b": 243
  },
  "hsl": {
    "h": 205.263,
    "s": 86.364,
    "l": 65.49
  },
  "oklch": {
    "l": 0.73877,
    "c": 0.12582,
    "h": 242.6
  },
  "luminance": 0.40935
}

Semantic roles & 50–950 ramp

primary

#5BB3F3

secondary

#EED1BB

accent

#6103E3

background

#F9FCFF

surface

#F2F8FE

border

#CCD1D6

text

#0F1317

muted

#7E8285

Preview Lab

Preview with #5BB3F3

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →